TRANSFER CASE

Discuss fixes, upgrades and modifications to your M37

Moderators: Cal_Gary, T. Highway, Monkey Man, robi

Post Reply
8543bob
SSGT
SSGT
Posts: 318
Joined: Fri Jul 10, 2009 9:02 pm

TRANSFER CASE

Post by 8543bob »

Good morning,
I recently had my M on the beach, here in Rockaway, NY, in 4WD high. I had the lock out hubs locked in, and drove on the beach for about 1/2 hour. When I got back on hard ground I attempted to shift back to 2WD, but the lever would not move back. I tried backing up, going forward, nothing. I drove back to my house in 4WD and when I arrived I tried again. It went back to 2WD; I unlocked the hubs and all is well. Any thoughts?? I dont use the 4WD alot but living on the beach it smetimes becomes necessary. THANKS BOB
Lifer
1SG
1SG
Posts: 2096
Joined: Sat Oct 20, 2007 3:50 am
Location: Elberton, Georgia, USA

Re: TRANSFER CASE

Post by Lifer »

Sounds like something was jammed into your shift linkage for the selector lever and it vibrated its way out on the return trip. The hubs wouldn't have anything to do with it. You should still be able to shift the t-case, regardless of how the hubs were set.
"PER ARDUA AD ITER"
T. Highway
Moderator
Moderator
Posts: 1818
Joined: Thu Jul 09, 2009 4:57 am
Location: S.E. Wisconsin, USA, Earth

Re: TRANSFER CASE

Post by T. Highway »

Bob,
I normally have the truck rolling just slightly (with the clutch pedal depressed) when shifting out of 4WD. Its called gear wrap up from driving on a hard surface for any distance.
1952 M37 W/W Rebuild @ 59% complete
Engine rebuild @ 95% complete
1985 M1009, 1990 M101A2, 2008 M116A3 Pioneer tool trailer
MVPA # 24265
NRA Life Member
NRA Cert. Personal Protection Pistol Instructor
NRA Cert. RSO
Class III RSO/KCR
cuz
1SG
1SG
Posts: 1147
Joined: Fri Oct 19, 2007 9:40 pm
Location: Northwestern Wisconsin
Contact:

Re: TRANSFER CASE

Post by cuz »

As mentioned above the gear train will often wrap up or bind a bit whenever you operate on hard surfaces. Sand unlike mud, snow and ice is not very slippery and gear wrapup can occur there as well. But most likely the initial short distance you drove on the blacktop resulted in the wrapup. As mentioned above making the shift on the roll helps as does unlocking the hubs then rolling a bit. After the long drive home on the hard surface it mayhave been the turns into your driveway that allowed you to shift.
Wes K
wsknettl@centurytel.net

54 M37, 66 M101, 45MB, 51 M38, 60 CJ5, 46 T3-C
MVPA 22099

Disclaimer: Any data posted is for general info only and may not be M37 specific or meet with the approval of some esteemed gurus.
8543bob
SSGT
SSGT
Posts: 318
Joined: Fri Jul 10, 2009 9:02 pm

Re: TRANSFER CASE

Post by 8543bob »

Thanks all for your input. I'll give it a try next time I come off the beach.
BOB
Post Reply